Question 7 (Textile Technology & Fibre Science)
Yarn that has helically twisted fibres at the core and belts/wrappers on the surface is
| (A) | Ring yarn |
| (B) | Rotor yarn |
| (C) | Compact yarn |
| (D) | Air-vortex yarn |
[Show Answer]
Option B is correct.
Rotor yarn is a type of spun yarn that is produced using a rotor spinning machine. The rotor spinning process is a relatively new spinning method that is characterized by its high-speed, high-efficiency, and low-cost production of yarn.
In the rotor spinning process, fibers are fed into a spinning rotor, which has a number of hooks that grab the fibers and draw them out into a continuous yarn. The spinning rotor rotates at high speed, which creates a high twisting force that tightens the fibers and creates a continuous yarn. The yarn is then wound onto a bobbin and removed from the machine.
Rotor yarn is characterized by its high strength, evenness, and softness, and is used in a wide range of textiles, including clothing, bedding, and towels. The rotor spinning process is also highly efficient, as it can produce large quantities of yarn in a relatively short period of time. This makes it an ideal method for producing high-volume, low-cost yarns for use in the production of mass-market textiles.
Frequently Asked Questions | FAQs
What is ring yarn ?
Ring yarn is a type of spun yarn that is produced using a spinning process known as ring spinning. In ring spinning, fibers are drawn into a spinning ring and then compressed and twisted to form a yarn. This process is one of the oldest and most commonly used methods of yarn production, and is widely used for producing high-quality, high-volume yarns.
Ring yarns are known for their strength and uniformity, making them well-suited for use in a wide range of applications, including clothing, home textiles, and industrial fabrics. They are typically produced from a variety of fibers, including cotton, wool, and other natural fibers, as well as synthetic fibers.
Ring yarns are produced using specialized spinning machines, known as ring spinning frames, which are designed to produce high-quality, high-volume yarns in a variety of counts and colors. These machines use a spinning ring to compress and twist the fibers into a yarn, and are capable of producing yarns with consistent quality and strength.
Overall, ring yarn is a type of spun yarn that is produced using ring spinning technology, and is valued for its strength, uniformity, and versatility.
What is rotor yarn ?
Rotor yarn is a type of spun yarn that is produced using a spinning process known as rotor spinning. In rotor spinning, fibers are drawn into a rotating drum and then compressed and twisted to form a yarn. This process is relatively fast and efficient, making it a popular choice for producing high-volume, low-cost yarns.
Rotor yarns are known for their strength and uniformity, making them well-suited for use in a wide range of applications, including clothing, home textiles, and industrial fabrics. They are typically produced from a variety of fibers, including cotton, polyester, and other synthetic fibers, and can be blended with other fibers to create a range of yarn properties.
Rotor yarns are produced using specialized spinning machines, which are designed to produce high-volume, low-cost yarns in a variety of counts and colors. These machines use high-speed rotors to compress and twist the fibers into a yarn, and are capable of producing yarns with consistent quality and strength.
Overall, rotor yarn is a type of spun yarn that is produced using rotor spinning technology, and is valued for its strength, uniformity, and cost-effectiveness.
What is compact yarn ?
Compact yarn is a type of yarn that has been compacted or densified during the spinning process. The compacting process reduces the amount of air between the fibers, resulting in a yarn that is stronger, more uniform, and has a higher yarn density compared to a non-compacted yarn of the same fiber composition and count.
Compact yarns are produced using specialized spinning technologies, such as ring spinning or rotor spinning. The compacting process is typically accomplished through the use of specialized rollers, drafting systems, and winding systems that work together to produce a high-quality, compact yarn.
Compact yarns are valued for their improved strength, uniformity, and durability, and are well-suited for use in a variety of applications, including clothing, home textiles, and industrial fabrics. They are typically produced from a variety of fibers, including cotton, polyester, and other synthetic fibers, and can be blended with other fibers to create a range of yarn properties.
Overall, compact yarn is a type of yarn that has been densified during the spinning process, resulting in a stronger, more uniform, and higher-density yarn.
What is air-vortex yarn ?
Air vortex yarn is a type of yarn that is produced using a spinning process that creates a unique air-entangled structure within the yarn. This process, known as air vortex spinning, involves blowing air into the spinning process to create a vortex of fibers that are twisted and entangled together to form the yarn.
Air vortex yarns are valued for their soft, lightweight, and bulky character, and are well-suited for use in a variety of applications, including clothing, home textiles, and industrial fabrics. They are typically produced from a variety of fibers, including cotton, polyester, and other synthetic fibers, and can be blended with other fibers to create a range of yarn properties.
The air vortex spinning process is a relatively new spinning technology, and air vortex yarns are still being developed and optimized for various applications. The unique air-entangled structure of air vortex yarns provides a number of advantages, including improved bulkiness, softness, and insulation properties, making it a promising technology for the future of the textile industry.
Overall, air vortex yarn is a type of yarn that is produced using air vortex spinning technology, and is valued for its soft, lightweight, and bulky character.